湧く， 涌く， わく
1. to well (up), to gush out (of water), to spring out, to surge
2. to appear (esp. suddenly) (sweat, tears, etc.), to sweat, to cry
3. to feel emotions (e.g. joy, bravery, etc.), to spring up (e.g. an idea, emotions, clouds), to well up, to arise
4....
涌出，喷涌而出，迸发而出，奔涌；出现（尤指突然出现汗水、泪水等），出汗，哭泣；感受情感（如喜悦、勇气等），迸发（如灵感、情感、云朵），涌起，升起；孵化，繁殖，滋生（尤指寄生性昆虫等）
いやいや、結構結構。下の名前で呼び合うのは親近感がわいてよろしいことだ。
tbd
Not at all, that's perfectly fine. Calling each other by one's given name is a good thing; it produces a feeling of fellowship.
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彼女の目には涙が湧きあふれていた。
tbd
Her eyes gushed with tears.
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肉にはウジがわいていた。
tbd
The meat was crawling with maggots.
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新鮮な伊勢エビを見たら、食欲がわいた。
tbd
The sight of fresh lobster gave me an appetite.
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いざとなれば勇気が湧いてくる。
tbd
Your courage will come out in a crisis.
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